DEF for Android - Download Free [Latest Version + MOD] 2025

Whats new in DEF v2.2.2

6 things about DEF

1. Diesel Exhaust Fluid (DEF), the operating fluid for SCR vehicles, is a non-toxic solution that transforms harmful Nitrogen Oxide (NOx) emissions from diesel-powered vehicles into harmless water vapor and nitrogen.
2. These retail units have been serving bulk DEF to the Heavy Duty Vehicle operators and drivers since 2004 and deliver DEF in large quantities at a fast pace.
3. Yara sites are not suitable for small vehicles e.g. Passenger cars and other small tank vehicles.
4. These stations are not suitable for car drivers or small tank refills (visit for more information on Passenger cars).
5. DEF reduces NOx emissions in the exhaust gas system of your SCR equipped diesel vehicle, whether it be a truck, bus, automobile or an off road vehicle.
6. We reliably supply the highest quality DEF via a network of distributors across the USA and Canada, so you are never far away from an Air1 distributor or retail outlet.

Release date: 2024-11-19
Current version: 2.2.2
File size: 14.96 MB
Developer: Yara International

How to setup DEF APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install def.apk file on your phone in 4 Simple Steps:

Download the def.apk to your device using any of the download mirrors.
Allow 3rd Party (non playstore) apps on your device: Go to Menu » Settings » Security » . Click "Unknown Sources". You will be prompted to allow your browser or file manager to install APKs.
Locate the def.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the DEF app will appear on the home screen of your device.